A 5,500-mile section of which structure runs from Mount Hu near Dandong to a spot in Gansu province?

Which 4th-century bishop and theologian wrote the "Confessions"? A 5-4 Supreme Court ruling in a 1978 case about whose "filthy words" upheld the FCC's power to regulate indecent broadc… Which five-star general and defense secretary became, in 1953, the first career soldier to receive the Nobel Peace Priz… A 55-pound specimen of the northern type of which long, sharp-toothed fish was pulled ashore in Germany in 1986? A six-day fast by which leader in 1932 changed the way India's "untouchables" were treated? Which six-time Best Actress nominee, for films such as "The King and I", received an honorary Oscar in 1994? Which word completes the name of the Emmy-winning reality show "The ___ Race"? A 6,000-pound segment of which structure was put on display at the Reagan Library?